Lineweight LLC v. FirstSpear, LLC

District Court, E.D. Missouri·Decided May 31, 2020·No. 4:18-cv-00387·Unknown

Opinion

EASTERN DISTRICT OF MISSOURI EASTERN DIVISION

LINEWEIGHT LLC, ) ) and ) ) CRYE PRECISION LLC, ) ) Plaintiffs, ) ) vs. ) Case No. 4:18-cv-00387-JAR ) FIRSTSPEAR, LLC, ) ) Defendant. ) )

MEMORANDUM AND ORDER This matter is before the Court on the parties’ competing motions for claim construction, memoranda, declarations, and responses. (Docs. 49-54, 57-59.) A hearing was held on April 16, 2019, at which both parties presented oral argument in support of their proposed constructions. On June 14, 2019, while this motion was pending, Defendant moved to stay the case so it could petition the Patent Trial and Appeal Board (“PTAB”) for Inter Partes Review (“IPR”). (Doc. 69.) The Court granted the motion and stayed the case. (Doc. 77.) On December 16, 2019, the parties notified the Court that the PTAB had denied Defendant’s petition. (Doc. 78.) Plaintiffs moved the Court to lift the stay but Defendant sought to keep it in place so it could request a rehearing. (Id.) The Court continued the stay and directed the parties to update it when the PTAB decided the request for rehearing. (Docs. 80, 81.) On March 25, 2020, the PTAB denied Defendant’s request for rehearing, and the parties sought to reopen the case. (See Doc. 82.) The Court will grant that motion, lift the stay, and 1 Defendant’s Motion for Leave to Submit Supplemental Evidence on April 1, 2020. (Doc. 84).

The Court will therefore consider the supplemental evidence and the arguments raised in the parties’ related briefing. (Docs. 83, 85, 86, 89.) Background On November 3, 2015, the U.S. Patent and Trademark Office (“USPTO”) issued patent number 9,173,436 (the “ ’436 Patent”) for a “MOLLE COMPATIBLE LIGHTWEIGHT GARMENT” (the “Garment”). (Doc. 1-1 at 2.) Under the invention summary, the inventor wrote that the Garment: offers a lightweight attachment structure which minimizes the material used by reducing the garment to a skeleton of horizontal bands connected by a few vertical bands. The garment . . . is composed of a glued layup of a substrate which is adhered to an outside layer . . . cut to define an array of holes . . . compatible with many [Pouch Attachment Ladder System (“PALS”) and Modular Lightweight Load-carrying Equipment (“MOLLE”)] accessories, and is very lightweight. (Id. at 1:55-64.) The ’436 Patent also lists the object of the garment: “to provide a load supporting garment which is compatible with the MOLLE system which is very lightweight . . . [and] which can be produced to accommodate attachments at any desired location.” (Id. at 2:1-3.) The ‘436 Patent also references an accessory which can be attached to the Garment by way of a strap attached to the rear wall of the accessory and engaging the Garment’s horizontal straps (the “Accessory”). (Id. at 6:6-13.) The Patent listed non-party Caleb Clark Crye as inventor and named Plaintiff Lineweight as assignee. (Doc. 1-1 at 2.) Lineweight in turn granted to Plaintiff Crye Precision an exclusive license in the ’436 Patent, including rights to sublicense and to sue for infringement. (Doc. 1 at 2; Defendant FirstSpear is a tactical equipment company that designs, manufactures, and sells gear to military, law enforcement, and private users. See ABOUT FIRSTSPEAR 2 are the “Assaulter Armor Carrier (AAC) System” platform, “JOKER – Jungle Operations

Airborne Capable Chest Rig,” and a “Modular Chest Rig 6/12,” all of which Plaintiffs argue infringe on the ‘436 Patent. (Doc. 1 at 4.) 1. The Prosecution History On January 14, 2011, Crye submitted his application for what would become the ’436 Patent. (Doc. 53-1.) The application included twenty-one claims.1 (Id. at 17-20.) Prosecution Claim 1 read: A load supporting garment comprising: elements arranged to engage a wearer and to support the garment thereon; and a bearing frame assembly connected to said elements, the bearing frame assembly having a substrate and an exterior layer fixed to the substrate, the bearing frame having portions defining a plurality of openings which extend through the substrate, and portions between two vertically spaced openings which define a first horizontal band, the substrate being a material different from the material of the exterior layer. (Id. at 17.) Prosecution Claim 6 read: A load supporting garment which is compatible with MOLLE accessories, comprising: elements arranged to engage a wearer and to support the garment thereon; and a bearing frame assembly connected to said elements, the bearing frame assembly having a substrate having portions defining a plurality of openings which extend through the substrate to define a plurality of vertically spaced horizontal bands, with one band spaced above another with an opening positioned therebetween, the spacing between an upper perimeter of one horizontal band and a upper perimeter of a horizontal band immediately below it being at least about two inches, such that MOLLE accessories may be received and attached to the horizontal bands. (Id. at 18.)

1 The Court uses “Prosecution Claim” to identify a claim as initially submitted, either in the application or at a later point during the prosecution of the ’436 Patent. The Court uses “Amended Claim” to identify a Prosecution Claim that has been changed and resubmitted during the prosecution of the ’436 Patent. The Court uses “Issued Claim” or simply “Claim” to identify a Prosecution Claim or Amended Claim as included in the final ’436 Patent. 3 applicant-initiated interview. (Doc. 37-4.) They discussed Prosecution Claim 6 in relation to

prior art2 for “Load-Bearing Equipment” invented by Albert Hellweg, U.S. Patent No. 7,644,449 (issued Jan. 12, 2010) (“Hellweg”). (Id.) According to the examiner’s summary of that interview, Crye “stated that he would amend the claims to further define the size of the opening as being at least one inch,” which the examiner described as being “required for attachment to the Molle/PALS system.” (Id. at 3.) Crye submitted several amended claims on March 5, 2013, including Amended Claim 1, which he had modified to describe the fixture of the two layers by heat-activated adhesive and to note that the openings in the Garment would be laser cut or die cut to distinguish it from Hellweg’s reinforced woven openings. (Doc. 37-5 at 9.) In addition, he added a reference to “a

second horizontal band” that would be spaced from the first horizontal band “such that MOLLE accessories may be received and attached to the horizontal bands.” (Id. at 3.) He also submitted Amended Claim 6, which had been altered to define the openings between the horizontal band as “extending at least one inch.” (Id. at 4, 8.) On June 14, 2013, the USPTO issued an office action3 summary rejecting all twenty-one of Crye’s submitted claims. (Doc. 37-7 at 3.) Amended Claim 1 was rejected based on Hellweg and one other earlier invention, the examiner having found that the prior art covered everything in Amended Claim 1 except the use of a substrate of material different from the exterior layer and “the specific spacing for receiving MOLLE accessories.” (Id. at 5.) Amended Claim 6 was

2 “Prior art” refers to earlier inventions that were “patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed [new] invention.” 35 U.S.C. § 102(a)(1).

3 An “office action” is “a letter from a trademark examining attorney setting forth the legal status of a trademark application.” U.S. PATENT AND TRADEMARK OFFICE, GLOSSARY, https://www.uspto.gov/learning-and-resources/glossary [hereinafter USPTO Glossary]. 4 inch spacing was outside the scope of Hellweg. (Id. at 6.)

Crye submitted more amendments on August 27, 2013. (Doc. 37-8.) Amended Claim 1 was further altered to clarify the process of laser cut or die cut openings. (Id.

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